A) 60 B) 51 C) 50 D) 23
A) 3 B) 1 C) 7 D) 17
A) 45 B) 103 C) 9 D) 5
A) 3 B) 33 C) 4 D) 15
A) Alkaline Metals B) Noble Gases C) Halogens D) Alkaline Earth Metals
A) 7 B) 14 C) 14.007 D) 2
A) 2 B) 56 C) 137 D) 6
A) 7 B) 2 C) 1 D) 6
A) Tellurium is a solid metalloid. B) Chlorine is a liquid non-metal. C) Phosphorus is a non-metal gas. D) Mercury is a solid metal.
A) 42 B) 6 C) 5 D) 96
A) 3 B) 7 C) 4 D) 2
A) Dalton B) Bohr C) Rutherford D) Thomson
A) Thomson B) Rutherford C) Bohr D) Dalton
A) Rutherford B) Thomson C) Bohr D) Dalton
A) Bohr B) Thomson C) Rutherford D) Dalton
A) Bohr, Rutherford, Dalton, Thomson B) Dalton, Thomson, Rutherford, Bohr C) Dalton, Thomson, Bohr, Rutherford D) Dalton, Rutherford, Thomson, Bohr
A) proton = positive, electron = negative, neutron = uncharged B) proton = negative, electron = positive, neutron = no charge C) proton = positive, electron = neutral, neutron = negative D) proton = positive, neutron = negative, electron = no charge
A) physical property B) chemical property C) chemical change D) physical change
A) protons and orbits B) neutrons and electrons C) protons and electrons D) protons and neutrons
A) Carbon and Boron B) Mercury and Thallium C) Phosphorus and Silicon D) Argon and Krypton
A) Electron Cloud B) Thomson's Model C) Rutherford's Model D) Bohr's Model E) Dalton's Model
A) the atom is a positively charged sphere with electrons embedded in it B) atoms are tiny solid spheres C) the atom is mostly empty space D) electrons orbit totally randomly around the nucleus
A) group B) period C) nucleus D) region
A) Lithium B) Beryllium C) Chlorine D) Magnesium
A) Group Number B) Period Number C) State of Matter D) Number of Neutrons
A) number of protons B) group number C) number of neutrons D) period number
A) the same as the number of electrons B) the mass number minus the atomic number C) the same as the number of energy levels D) greater than the mass number
A) State of Matter B) Group Number C) Period Number D) Number of Neutrons
A) Nitrogen B) Manganese C) Carbon D) Francium
A) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity. B) Yes, some Carbon atoms have 6 protons, some have 7 protons. |